View of /trunk/NationalProblemLibrary/Rochester/setTrig07Identity/srw7_1_59.pg

    1 ## DESCRIPTION
    2 ## Precalculus: Trigonometric Identities
    3 ## ENDDESCRIPTION
    4 
    5 ## KEYWORDS('trigonometry','trigonometric identities')
    6 ## Tagged by cmd6a 5/11/06
    7 
    8 ## DBsubject('Precalculus')
    9 ## DBchapter('Analytic Trigonometry')
   10 ## DBsection('Trigonometric Identities')
   11 ## Date('')
   12 ## Author('')
   13 ## Institution('Rochester')
   14 ## TitleText1('')
   15 ## EditionText1('')
   16 ## AuthorText1('')
   17 ## Section1('')
   18 ## Problem1('')
   19 
   20 DOCUMENT();        # This should be the first executable line in the problem.
   21 
   22 loadMacros(
   23 "PG.pl",
   24 "PGbasicmacros.pl",
   25 "PGchoicemacros.pl",
   26 "PGanswermacros.pl",
   27 "PGauxiliaryFunctions.pl"
   28 );
   29 
   30 TEXT(beginproblem());
   31 $showPartialCorrectAnswers = 0;
   32 
   33 
   34 TEXT(EV2(<<EOT));
   35 If \(\sec t - \tan t =  \frac{1}{f(t) + \tan t}\), then
   36 $BR
   37 \(f(t) =\) \{ans_rule(10)\}.
   38 $BR
   39 EOT
   40 
   41 $ans1="sec(t)";
   42 
   43 ANS(fun_cmp($ans1,var=>['t']));
   44 
   45 ENDDOCUMENT();        # This should be the last executable line in the problem.